Cabinet air-mixer for installation against walls



3, 1954 J. M. REDMOND, JR 2,685,245

CABINET AIR-MIXER FOR INSTALLATION AGAINST WALLS Filed Nov. 27, 1950 INV EN TOR.

ATTORNEYS. v

Patented Aug. 3, 1954 CABINET AIR-MIXER FOR INSTALLATION AGAINST WALLSJohn M. Redmond,

Jr., Wichita, Kans., assignor to The Coleman Company, a corporation ofKansas Inc., Wichita, Kans.,

Application November 27, 1950, Serial No. 197,713

7 Claims. 1

This invention relates to a cabinet air-mixer for installation against awall. The invention is particularly useful in connection with a cabinetin which heated air is mixed with room air and the mixed air thendischarged into the room, the cabinet being installed so as to fittightly against a room wall.

An effective means for heating a room is by discharging into a cabinethaving a spaced inlet and outlet highly heated air so as to induce roomair within the cabinet for admixture with the heated air and thendischarging the mixture into a room. Such a system is shown inconsiderable detail in the co-pending application of Jack W. Kice,Serial No. 760,572, filed July 12, 1947, now abandoned. Considerabledifiiculty has been experienced in the employment of an air-mixercabinet so as to make the same fit tightly against a wall and thus toavoid streaking the wall, while at the same time avoiding theoverheating of the wall. The ordinary wall surfaces of a room are foundto be highly irregular, and when the back plate of the cabinet is placedagainst the wall, there are wide spaces and channels formed throughwhich foreign material is from time to time ejected, causing a streakingof the wall. Such movement of foreign material is usually induced by theheat radiated from the back plate, and such heat, in addition to causingthe unsightly results described, also have an adverse effect upon thewallpaper or plaster wall of the room itself. There has long been a needfor a cabinet which might be effectively anchored against the wall toprevent such streaking while at the same time insulating wall.

An object of the present invention is to overcome the above dlfficultiesand to provide a cabinet which avoids undue heating of the wall while atthe same time providing a tight seal between the cabinet and the wall toavoid the above mentioned discoloration or streaking of the wall. Afurther object is to provide a cabinet structure having flanged portionsspacing the main cabinet from the wall and presenting edges whichprovide a close contact with the wall surface in spite of irregularitiestherein, while also providing a flanged portion which may be cut away toreceive the baseboard of the wall. A still further object is to providea structure having means for anchoring it securely against the wallwhile providing a cabinet chamber spaced forwardly of the wall andprovided with spaced inlet and outlet openings. Other specific objectsand advantages will appear a the pecification proceeds.

the cabinet from the the top wall II,

The invention is shown in an illustrative embodiment by the accompanyingdrawing, in which Figure 1 is a perspective view of a cabinet structureembodying my invention; Fig. 2, a side view in elevation; Fig. 3, a viewsimilar to Fig. 2 but showing a side flanged portion cut away toreceived the baseboard of a room; Fig. 4, a broken view taken from theinside of the cabinet and showing the flanged side portion which is tobe cut away to receive the baseboard; and Fig. 5, a perspective view ofthe wall bracket which may be employed.

In the illustration given, I provide a shell member In which extendsdownwardly at an inclination and is provided at its top with arearwardly extending top wall I I. The shell is provided with rearwardlyextending side walls I2. Within the chamber thus provided by the shellIll, I secure an imperforate casing wall I3, which is united to the sidewalls I2 and which is directed forwardly at I4 to provide a top wall forthe inner chamber. The imperforate wall I3, together with the side wallsextending forwardly thereof, the top wall I4, and the forward portion ofthe panel I I], provide thus a chamber I 5 which is effective as anair-mixer chamber. The front panel of casing I0 is provided at its upperside with a vane-equipped outlet I6, and at its bottom with avane-equipped inlet I]. A pipe I8 of reduced cross section leads from afurnace or other source of hot air and terminates at a point above theinlet I1 and within the chamber I5. Thus, when hot air is discharged athigh velocity through pipe I8, air is drawn from the room through inletI1 into the chamber I5 and the mixture of heated air and room air isthen passed out of the outlet opening I6 at the upper end of the shell.

By the structure above provided, the air-mixing cabinet actuallycomprises the structure forwardly of the wall I3 and the portions of theside wall I2 extending rearwardly of wall I5 actually from sideextensions I9 beyond the actual air-mixer cabinet. Similarly, the rearportion of which extends rearwardly of provides in effect an extension20 of the Such extended portions of the top wall walls of the cabinetserve to space the real cabinet structure forwardly of the wall and thusto provide an insulation space between it and the room wall.

In the illustration given, the room wall is designated by the numeral2|, and it is shown provided with a baseboard 22. It is a known factthat the baseboards of rooms vary greatly in wall it, top wall.

depth, height, and in specific conformation. For that reason, it isimpossible to provide a cabinet with a shape which will exactly fit theconformation of any and all baseboards. In the structure shown, I findthat the side wall extension portion I9, which is preferably formed ofsheet metal, may be'cut readily by the person making the installation 50as to make the cut-out portion indicated by the line 23 in Fig. 3, andby dotted lines in Fig. 4, fit the particular baseboard "22 to which iti to be applied. Thus the .extended side walls l9 serve two importantfunctions. They provide flange portions which may readiiy be cut away toreceive the conformation .of the baseboard, while also presenting-narrowedges which form a tight seal with the room wall in spite ofirregularities therein. Further, such flanges or side wall extensionsspace the actual back wall of the cabinet (wall 13) from :the room walland provide an insulating space therebetween.

It will be observed that the cutting away of the side wall portion. nearthe bottom along line .2-3.does-not in any way injure the rear wall 13-of the-cabinet, and the cabinet thus remains intact .asatmeans forproviding an air-mixing chamber.

I have found that the'cabinet canbesupported firmly and securely againstthe wall by employing bracket means which will now be described.

To the side wall I secure a bracket member .25 having apertures 26through which screws or .other means may be passed into the wall forsecuring the bracket in position. The bracket 25 .is .provided at itsends with spring flange 21 having slots -28 therein. Withthe bracketlocated asshown, the spring flanges 2i willbear against .theside wallsis of the cabinet and a screw :29 on each side of the cabinet may bepassed through the wall portion 19 't oengage' the slot .28

in each flange '21. By this .means, the upper end of the' cabinet issecurely anchored in position.

To anchor the bottom portion of the cabinet, I prefer to .secure to thefloor below the cabinet abracket strip'dll. The strip 38 is providedwith openings 3| for receiving screws orother fastening means and ispreferably provided with upturnedend flanges 32 which are adapted .tobear against the inner surface of the cabinet wall 12. The flange 32maybe provided with an aperture 33 for receiving a screw which passesthrough a similar opening 34 in the lower end of the cabinet I2.

The bracketail is also utilized forreceiving and supporting-the-hot airpipe 18. Thus the bracket .30 and pipe 118 provide an assembly whichmaybe installed simultaneously for anchoring the lower portion of thecabinet and simultaneously supporting the air pipe l8 centrally withinthe cabinet.

While in the foregoing specification, I have set forth a specificstructure in considerable detail for the purpose of illustrating oneembodiment of the invention, it will be understood that such details maybe varied widely by those skilled in the art without departing from thespirit of my invention.

I claim:

1. An air-mixer cabinet adapted to be installed against a room wallprovided with a baseboard, comprising a shell forming an air-mixingchamber provided with an air inlet spaced from an air outlet, said shellhaving its top wall and side walls extended rearwardly to abutthroughout substantially the entire lengths thereof against the :roomwall at a distance from the rear wallof 4 said chamber, said side wallsbeing of thin meta and being cut away to fit the conformation of saidbaseboard and abut thereagainst when the rear edges of said side wallsand top wall are pressed against said room wall, whereby a substantiallydead air space is provided between said room Welland said air-mixingchamber with the result that the air between said cabinet and wall doesnot move upwardly from said cabinet when heated.

said shell being extended rearwardly to abut throughout substantiallythe entire lengths thereof the room wall at a distance rearwardly ofsaid shell rear wall to provide a substantially dead air space betweensaid room .wall and shell rear wall, and a bracket adapted to be securedto the room wall and provided with end'spring flanges adapted to engagethe inner end walls of said cabinet, said flanges being provided withopenings :for receiving screws passing through the side walls of saidcabinet.

3. .Anair-mixer cabinet adapted to be installed against a room wall,comprising a shell having front, rear, top and side walls providing anairmixing chamber, the front wall thereof being provided with an airinlet and an .air outlet spaced from the inlet, the side walls and topwalls of said shell being extended rearwardly to tightly abut the roomwall at a distance rearwardiy of said shell rear wall to provide asubstantially dead air space between said room wall and shell rear wall,and a bracket adapted to be secured to the floor and provided withendflanges adapted to slideably engage the inner side walls ofzsaidcabinet, said bracket being apertured-to receive a hot air pipeextending upwardly into said cabinet.

4. An air-mixer cabinet adapted to be installed against a room wall,comprising a shell forming an air-mixing chamber provided with anair-inlet spaced from an air outlet, said shell having its top and sidewalls extended'rearwardly to abut the room wall at a spaced distancefrom the rear of said chamber to provide a closed insulating spacebetween the room wall and rear wall of said chamber, a bracket adaptedto be securedto the room wall and provided with end spring flangesengageable with the inner side wall surfaces-of said cabinet, a floorbracket having spring end flanges engageable with the inner surfaces ofthe side walls of said cabinet, and a hot air pipeextending through andcarried by said floor bracket.

5. An air mixer cabinet adapted to be installed against a room wall,comprising a shell forming an air mixing chamber provided with an airinlet and an air outlet spaced therefrom, said shell having its top walland side walls extended rearwardly to abut throughout substantially theentire lengths thereof the room wall at a spaced distance rearwardly ofsaid chamber, and a bracket adapted to be secured to the room wall andprovided with end spring flanges adapted to engage therearwardly-extended side walls of said cabinet, said flanges beingprovided with openingsfor receiving screws passing through-therearwardly-extending side walls of said cabinet.

6. An air mixer cabinet adapted to'be installed against a room wallprovided with a baseboard,

comprising a shell forming an air mixing chamber provided with an airinlet and spaced therefrom an air outlet, said shell having its top walland side walls extended rearwardly to abut throughout substantially theentire lengths thereof the room wall at a distance from the rear Wall ofsaid chamber, said side walls being arranged to conform to theconfiguration of said baseboard and abut thereagainst when the rearedges of said side walls and top wall are pressed against said roomwall, whereby a substantially dead air space is provided between saidroom wall and said air mixing chamber with the result that the airbetween said chamber and room wall does not move upwardly from saidcabinet when heated.

7. The structure of claim 6 in which a hot air pipe extends upwardly andinto said chamber and terminates adjacent said inlet, said hot air pipeextending through a bracket secured to the side walls of said cabinetand being adapted to be secured to the floor of a room space.

References Cited in the file of this patent UNITED STATES PATENTS NumberName Date 1,063,645 Boles June 3, 1913 1,303,210 Klein May 6, 19191,449,072 Stearns Mar. 20, 1923 1,977,248 Space Oct. 16, 1934 2,144,466Stikeleather Jan. 17, 1939 2,159,495 Anderson May 23, 1939 2,466,353Babcock Apr. 5, 1949 2,511,490 Bauer June 13, 1950

